CHAMBERLAIN WIRELESS MOTIONALERT SYSTEM MOTION ALERT SYSTEM Up to 1/2 mile range - alerts when light and sound when vehicles or pedestrians are approaching Convenient and affordable safety system - perfect for home, business, property and worksite Weatherpoof outdoor sensor with adjustable sensitivity control Expands up to 4 sensors Easy installation and easy operation Includes base unit, sensor and mounting hardware BRAND : CHAMBERLAIN
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